River otter conservation success following pesticide bans demonstrates what is possible when root causes of decline are addressed, with ongoing habitat restoration and conflict reduction needed to sustain recovery.
Otter recovery demonstrates that individual welfare and population conservation goals can be aligned through systematic addressing of root causes. Improved water quality reduces chronic pollutant exposure for individual otters; pesticide bans eliminated the reproductive toxicity causing individual fitness loss; and legal protection reduces direct persecution. Ongoing welfare concerns — road mortality, fish farm conflict, lead poisoning from water contamination — represent the remaining gap between current practice and the conditions needed for otters to flourish without systematic human-caused harm.